CN116638262A - Short-flow particle medium forming method and device for heterogeneous alloy multilayer honeycomb composite board - Google Patents
Short-flow particle medium forming method and device for heterogeneous alloy multilayer honeycomb composite board Download PDFInfo
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- CN116638262A CN116638262A CN202310394349.7A CN202310394349A CN116638262A CN 116638262 A CN116638262 A CN 116638262A CN 202310394349 A CN202310394349 A CN 202310394349A CN 116638262 A CN116638262 A CN 116638262A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 286
- 239000000956 alloy Substances 0.000 title claims abstract description 286
- 239000002131 composite material Substances 0.000 title claims abstract description 170
- 239000002245 particle Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000007787 solid Substances 0.000 claims abstract description 66
- 238000009792 diffusion process Methods 0.000 claims abstract description 62
- 238000003825 pressing Methods 0.000 claims abstract description 59
- 238000004321 preservation Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 24
- 229910000838 Al alloy Inorganic materials 0.000 description 21
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 17
- 230000008569 process Effects 0.000 description 17
- VCHVXUQQZMQWIY-UHFFFAOYSA-N [AlH3].[Mg].[Li] Chemical compound [AlH3].[Mg].[Li] VCHVXUQQZMQWIY-UHFFFAOYSA-N 0.000 description 16
- 238000013329 compounding Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 8
- 229910000861 Mg alloy Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 3
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention provides a method and a device for forming a heterogeneous alloy multilayer honeycomb composite board short-flow granular medium, which specifically comprises the following steps: carrying out surface pretreatment on the alloy plate; laying the alloy plates; and carrying out metallurgical connection on the prefabricated heterogeneous alloy composite plate by using diffusion connection: placing the dissimilar alloy composite plate in a resistance furnace, and heating the resistance furnace to a preset temperature for diffusion connection in an equal gradient manner; respectively pressing the left punch and the right punch into the first cavity and the second cavity, and controlling current frequency by changing a press machine to pulse-press a pressing plate, a die, the punch and a contact area with the surface of the dissimilar alloy composite plate in the forming device; carrying out heat preservation and pressure maintaining treatment on the dissimilar alloy composite plate; forming the dissimilar alloy composite plate by using solid particles; and cooling and unloading in a gradient way to obtain the heterogeneous alloy multilayer honeycomb composite board. The invention integrates the forming preparation and the diffusion connection of adjacent metal layers, has uniform diffusion connection metallurgical bonding effect and higher forming efficiency.
Description
Technical Field
The invention relates to the technical field of forming of dissimilar alloy composite plates, in particular to a short-flow particle medium forming method and a short-flow particle medium forming device for a dissimilar alloy multilayer honeycomb composite plate.
Background
The dissimilar alloy composite material may be formed as a whole from two or more materials of different properties by chemical or physical metallurgical bonding. The heterogeneous alloy composite material can effectively reduce consumption of rare alloy and realize optimal configuration of resource materials of each component. At present, the main preparation methods of the dissimilar alloy composite plate include an explosion compounding method, a hot rolling method and the like. The preparation condition of the explosion compounding method is harsh, the uniformity and the safety performance of the explosion compounding method are still to be improved, the hot rolling method has higher requirements on a rolling mill, and the metallurgical bonding is performed, so that the process is simple, and the composite board has good process performance.
At present, the forming member of the dissimilar alloy honeycomb composite plate is mainly a single layer, the dissimilar alloy multi-layer honeycomb composite plate is mainly formed by compounding the single-layer dissimilar alloy honeycomb composite plate, the flow is complex, and the efficiency is low. Therefore, the method and the device for forming the short-flow particle medium of the heterogeneous alloy multilayer honeycomb composite board are very necessary, wherein the short-flow refers to that the short-flow solid particle forming of the heterogeneous alloy multilayer honeycomb composite board is completed in a single process, namely, the composite board is firstly subjected to diffusion connection and then subjected to solid particle bulging, and the diffusion connection and the solid particle bulging are completed in the device.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a method and a device for forming a heterogeneous alloy multilayer honeycomb composite board short-flow particle medium, which are characterized in that a prefabricated heterogeneous alloy composite board obtained by laying is connected by utilizing diffusion connection metallurgical bonding, and is mainly heated to the preset temperature of diffusion connection by gradient heating such as a resistance furnace in a forming device, and is subjected to pulse pressurization by the forming device for diffusion connection; and then, a solid particle forming technology is adopted to expand the dissimilar alloy composite plate to form a multi-layer honeycomb structure, the drafting force of the dissimilar alloy composite plate is uniform in the process, and the pressure during forming is uniform, so that the diffusion connection-solid particle forming preparation process and the forming process of the dissimilar alloy composite plate are integrated into a whole, the multi-layer dissimilar alloy honeycomb composite plate is manufactured by a single process, and the production efficiency is improved.
The invention provides a method for forming a heterogeneous alloy multilayer honeycomb composite board short-flow granular medium, which comprises the following specific implementation steps:
s1, preparing an alloy plate and carrying out surface pretreatment, wherein the alloy plate comprises a first alloy plate, a second alloy plate and a third alloy plate;
s2, paving and arranging the alloy plates:
s21, placing a second alloy plate between two identical first alloy plates to manufacture a plurality of laminated plates with identical structures;
s22, placing a plurality of third alloy plates between two identical laminated plates in an equidistant mode to obtain a prefabricated heterogeneous alloy composite plate;
s3, connecting the prepared heterogeneous alloy composite plates by using diffusion connection metallurgical bonding:
s31, polishing and drying the diffusion connection surface of the prefabricated dissimilar alloy composite plate obtained in the step S22, and spraying a spacer agent on the area of the prefabricated dissimilar alloy composite plate where the third alloy plate is not arranged;
s32, placing the dissimilar alloy composite plate processed in the S31 into a resistance furnace, vacuumizing the resistance furnace to 0.09MPa, heating the resistance furnace to a preset temperature in diffusion connection in a gradient manner by utilizing a temperature control system and a thermocouple at a preset speed of 15 ℃/min, wherein the diffusion coefficient expression of the dissimilar alloy composite plate at the preset temperature is as follows:
D＝Ee -q/KT
wherein D is a diffusion coefficient at a preset temperature, K is a Boltzmann constant, q is diffusion activation energy, E is a proportionality coefficient, T is a preset temperature, and E is a natural logarithm base;
s33, respectively pressing the left punch and the right punch into the first cavity and the second cavity, and performing pulse pressurization on an upper pressing plate, a lower pressing plate, an upper die, a lower die, the left punch, the right punch and a contact area with the surface of the dissimilar alloy composite plate in the forming device by changing the control current frequency of the press, wherein the diffusion connection effect of the dissimilar alloy composite plate is better due to the pulse pressurization, and the pressure is loaded to 8-20 MPa in an equal gradient manner at a preset speed;
s34, performing heat preservation and pressure maintaining treatment on the dissimilar alloy composite plates in the resistance furnace, closing the resistance furnace after heat preservation is completed, and cooling to room temperature, wherein at the moment, diffusion connection of adjacent alloy plates in the dissimilar alloy composite plates is completed;
s4, forming the heterogeneous alloy composite plate by utilizing solid particles:
s41, a right punch of a right hydraulic cylinder positioned on the right side of the press is withdrawn from a second cavity of the dissimilar alloy composite plate, and solid particles are added into the second cavity, so that the whole second cavity is filled with the solid particles;
s42, pressing a right punch of a right hydraulic cylinder positioned on the right side of the press into a second cavity of the dissimilar alloy composite plate, wherein the expression of the pressing amount of the punch pressed into the dissimilar alloy composite plate is as follows:
wherein h is the pressing amount of the pressing head, a is the width of the third alloy plate, b is the thickness of the third alloy plate, z is the effective calculated length of the deformation zone, y is the distance of the initial pressing head, and alpha is the solid particle compression coefficient;
s43, heating the heterogeneous alloy composite plate filled with the solid particles to 400-470 ℃ and keeping the temperature unchanged;
s44, keeping the pressure of an upper pressing plate and a lower pressing plate in the forming device unchanged, respectively controlling an upper die at the upper end of a press machine to move upwards and connected with an upper hydraulic cylinder by utilizing a pressure control system, and downwards moving a lower die at the lower end of the press machine and connected with an ejection cylinder to reserve a forming space for forming solid particles of the heterogeneous alloy composite plate;
s45, respectively controlling a left punch fixed on a left hydraulic cylinder and a right punch fixed on a right hydraulic cylinder to carry out gradient pressurization on solid particles by utilizing a pressure control system, so that the pressure of the dissimilar alloy composite plate is 20-30 MPa until the dissimilar alloy composite plate is tightly attached to an upper die and a lower die, at the moment, the upper die moves downwards by 2-5mm, the lower die moves upwards by 2-5mm, and expands to form a multilayer honeycomb structure, at the moment, keeping heat and pressure until the dissimilar metal alloy multilayer honeycomb plate is completely formed;
s5, carrying out gradient cooling on the resistance furnace through a temperature control system, respectively unloading the left hydraulic cylinder, the right hydraulic cylinder, the upper hydraulic cylinder and the ejection cylinder in the forming device through a pressure control system, and demoulding to obtain the honeycomb heterogeneous alloy composite plate.
Preferably, the first alloy plate and the third alloy plate are made of dissimilar alloys, the second alloy plate and the third alloy plate are made of the same alloy, the first alloy plate and the second alloy plate have the same appearance structure, and the width of the second alloy plate is 3n times that of the third alloy plate; the distance between two adjacent third alloy plates is 3 times of the distance between two ravines, and the ravines are positioned between the two adjacent third alloy plates.
Preferably, in step S1, the surface pretreatment includes etching grooves, deoxidizing the layer, and drying; the etched gully plays a role in guiding, and the dissimilar alloy composite plate is deformed along the gully processed in advance under the action of axial force to gradually expand to form a honeycomb shape.
Preferably, in step S32, the preset temperature is 400 to 470 ℃.
Preferably, the etched gully is located at a side where the first alloy plate and the third alloy plate are in contact, the depth of the gully is 80 micrometers, and the arc surface of the gully corresponds to a central angle of 120 °.
Preferably, in step S4, the solid particles are silicon nitride ceramic balls and molybdenum disulfide, and the diameter is between 0.3 and 0.8 mm.
In another aspect of the invention, a heterogeneous alloy multi-layer honeycomb composite board short-flow solid particle forming device using the heterogeneous alloy multi-layer honeycomb composite board short-flow particle medium forming method is provided, which comprises an upper hydraulic cylinder, a press, a resistance furnace, a left hydraulic cylinder, a left punch, a lower pressing plate, a lower die, an ejection cylinder, an upper die, an upper pressing plate, a right punch and a right hydraulic cylinder; the resistance furnace is located the middle part of press, go up the pneumatic cylinder the installation end with the upper end of press is connected, go up the pneumatic cylinder the motion end respectively with go up the mould with the top board is connected, the installation end of ejecting cylinder with the lower extreme of press is connected, the motion end of ejecting cylinder respectively with the bed die with the lower board is connected, the installation end of left pneumatic cylinder with the installation end of right pneumatic cylinder respectively with the left end and the right-hand member of press are connected, the motion end of left pneumatic cylinder is equipped with left drift, the motion end of right pneumatic cylinder is equipped with right drift.
Preferably, the device further comprises a pressure control system, a displacement sensor, a PID control system, a temperature control system and a thermocouple, wherein the control end of the pressure control system is respectively connected with the control ends of the displacement sensor, the upper hydraulic cylinder, the left hydraulic cylinder, the ejection cylinder and the right hydraulic cylinder, and the PID control system is respectively connected with the control ends of the resistance furnace, the temperature control system and the thermocouple.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the first alloy plate/the second alloy plate/the first alloy plate are completely overlapped and paved through the paving, then the diffusion connection is carried out according to the different alloy composite plates paved by the laminated plate/the third alloy plate/the laminated plate, and the required different alloy honeycomb composite plate structural member is obtained by utilizing the solid particle forming preparation process, and the whole manufacturing process is efficient and short.
2. The forming device based on the solid particle forming technology has compact structure, and utilizes the right punch of the right hydraulic cylinder positioned on the right side of the press and the left punch of the left hydraulic cylinder positioned on the left side of the press to respectively lead solid particle media to be unevenly distributed and pressure-transferred, thereby exerting the mechanical property of the alloy plate in the heterogeneous alloy composite plate.
3. The alloy plate is not limited in size, can be adjusted according to the use requirement, greatly expands the application range of the forming method, and can be used for various different scenes.
4. The invention can integrate the diffusion connection-solid particle forming preparation process and the forming process of the dissimilar alloy composite plate, can realize one-time manufacturing of the multilayer dissimilar alloy honeycomb composite plate, and improves the production efficiency; in addition, the diffusion connection and the solid particle bulging are carried out in the forming device, and the efficient forming of the composite honeycomb plate can be realized by a single process, so that the cost is effectively reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a flow chart of a method for forming a short-flow particulate medium of a multi-layer honeycomb composite plate of the present invention;
FIG. 2 is a layering diagram of a laminate in a dissimilar alloy composite plate in the method for forming a dissimilar alloy multilayer honeycomb composite plate short-flow particulate medium according to the invention;
FIG. 3 is a layering diagram of a pre-prepared dissimilar alloy composite plate in the dissimilar alloy multi-layer honeycomb composite plate short-flow particulate medium forming method of the invention;
FIG. 4 is a block diagram of the short-flow solid particle forming device of the heterogeneous alloy multilayer honeycomb composite board of the invention;
FIGS. 5a and 5b are block diagrams of a left punch, a right punch, a first cavity and a second cavity in the short-flow solid particle forming device of the heterogeneous alloy multi-layer honeycomb composite board of the invention;
FIG. 6 is a lay-up diagram of a finished product of a honeycomb shaped heterogeneous alloy composite board in the heterogeneous alloy multilayer honeycomb composite board short-flow particle medium forming method of the invention;
FIG. 7 is a flow chart of heating and pressurizing in the method for forming the short-flow granular media of the heterogeneous alloy multilayer honeycomb composite board.
The main reference numerals:
the device comprises a pressure control system 1, a displacement sensor 2, an upper hydraulic cylinder 3, a press 4, a resistance furnace 5, a temperature control system 6, a thermocouple 7, a PID control system 8, a left hydraulic cylinder 9, a left punch 10, a lower pressing plate 11, a lower die 12, an ejection cylinder 13, an upper die 14, an upper pressing plate 15, a right punch 16, a right hydraulic cylinder 17, a first alloy plate 18, a second alloy plate 19, a third alloy plate 20, a laminated plate 21, a first cavity 22 and a second cavity 23.
Detailed Description
In order to make the technical content, the achieved objects and the effects of the present invention more detailed, the following description is taken in conjunction with the accompanying drawings.
The method for forming the heterogeneous alloy multilayer honeycomb composite board by using the short-flow particle medium is realized by the following steps: the honeycomb heterogeneous alloy composite plate is firstly subjected to diffusion connection, then is swelled by solid particles, and the diffusion connection and the solid particle swelling are completed in the same procedure, and the specific process is as shown in fig. 1 and 7:
s1, preparing an alloy plate and carrying out surface pretreatment.
Specifically, the alloy plate includes a first alloy plate 18, a second alloy plate 19, and a third alloy plate 20, the first alloy plate 18, the second alloy plate 19, and the third alloy plate 20 are manufactured by using a wire cutting method or a laser cutting method, the first alloy plate 18 and the third alloy plate 20 are different alloys, the second alloy plate 19 and the third alloy plate 20 are the same alloy, the first alloy plate 18 and the second alloy plate 19 have the same shape structure, and the width of the second alloy plate 19 is 3n times the width of the third alloy plate 20.
In a preferred embodiment of the present invention, the dissimilar alloys are magnesium alloys, aluminum alloys, and the first alloy sheet 18 is magnesium alloy, the second alloy sheet 19 is aluminum alloy, the aluminum alloy sheet is LY12 aluminum alloy, and the magnesium alloy is AZ91 magnesium alloy.
The surface pretreatment comprises etching gully, removing oxide layer on the surface of the metal plate and drying, wherein the etching gully is positioned on one side where the first alloy plate 18 and the third alloy plate 20 are contacted, the depth of the gully is 80 microns, the corresponding central angle of the cambered surface of the gully is 120 degrees, the gully plays a guiding role in the forming process of the dissimilar alloy composite plate, and the dissimilar alloy composite plate is deformed and eventually gradually expands along the gully processed in advance under the action of axial force to form the honeycomb dissimilar alloy composite plate.
S2, paving and arranging the alloy plates.
And S3, connecting the prepared heterogeneous alloy composite plates by using diffusion connection metallurgical bonding.
S4, forming the dissimilar alloy composite plate by utilizing the solid particles. Specifically, the solid particles are silicon nitride ceramic balls and molybdenum disulfide, and the diameter is between 0.3 and 0.8 mm; when the solid particles swell, the cavity is filled with the solid particles, the left hydraulic cylinder 9 and the right hydraulic cylinder 17 are used for respectively carrying out pressurization bulging on the solid particles in the cavity, the pressure applied by the bulging pressure to the solid particles is regulated through the left hydraulic cylinder 9 and the right hydraulic cylinder 17, the bulging pressure interval applied by the solid particles is 20-30 MPa, and the solid particles enable the heterogeneous alloy composite plate to be gradually deformed along the processed gully until the hexagon is formed.
S5, carrying out gradient cooling on the resistance furnace 5 through the temperature control system 6, respectively carrying out depressurization and unloading on the left hydraulic cylinder 9, the right hydraulic cylinder 17, the upper hydraulic cylinder 3 and the ejection cylinder 13 in the forming device through the pressure control system 1, and carrying out demoulding to obtain the honeycomb heterogeneous alloy composite plate. Specifically, the temperature and the pressure are reduced in a gradient way so as to reduce the rebound of the multi-layer honeycomb composite board, and the temperature and the pressure are reduced at 430-470 ℃ until the pressure of the solid particles applied to the inner surface of the heterogeneous alloy composite board is reduced to 0MPa.
Further, the process of laying the alloy sheets in step S2 includes,
s21, the second alloy plate 19 is placed between two identical first alloy plates 18, so as to form a plurality of laminated plates 21 with identical structures, as shown in fig. 2.
S22, a plurality of third alloy plates 20 are placed between two identical laminated plates 21 in an equidistant mode, the specific layer number of the dissimilar alloy composite plates is determined according to the load born by the actual service environment of the prepared part, and the layer number n is more than or equal to 2, so that the prefabricated dissimilar alloy composite plates are obtained. Specifically, the distance between the adjacent two third alloy plates 20 is 3 times the distance between the two ravines, and the ravines are located in the middle of the adjacent two third alloy plates 20, as shown in fig. 3.
The accurate positioning of the first alloy sheet 18/the second alloy sheet 19/the first alloy sheet 18/the laminate sheet 21/the third alloy sheet 20/the laminate sheet 21 is ensured during the laying.
Further, the process of connecting the prefabricated heterogeneous alloy composite plates by using diffusion connection metallurgical bonding in the step S3 comprises the following steps:
and S31, polishing and drying the diffusion connection surface of the prefabricated dissimilar alloy composite plate obtained in the step S22, ensuring that the contact surface almost has no gap, and spraying a release agent on the area of the prefabricated dissimilar alloy composite plate where the third alloy plate is not arranged, wherein the release agent is sprayed after each layer of third alloy plate 20 is laid.
S32, placing the dissimilar alloy composite plate processed in the step S31 in a resistance furnace 5, vacuumizing the resistance furnace 5 to 0.09MPa, and heating the resistance furnace 5 to a preset temperature of diffusion connection in an equal gradient manner by utilizing a temperature control system 6 and a thermocouple 7 at a preset speed of 15 ℃/min, wherein the temperature of the resistance furnace 5 is specifically selected to be higher than the dissimilar alloy diffusion connection composite temperature, the preset temperature is 400-470 ℃, and the diffusion coefficient expression of the dissimilar alloy composite plate at the preset temperature is as follows:
D＝Ee -q/KT
wherein D is a diffusion coefficient at a preset temperature, K is a Boltzmann constant, q is diffusion activation energy, E is a proportionality coefficient, T is a preset temperature, and E is a natural logarithm base.
From the formula, the atomic diffusion coefficient increases with increasing temperature, so that the diffusion process is faster. However, the diffusion bonding temperature should not be too high, otherwise, the bonding strength is reduced due to serious grain growth, serious deformation, etc., so that the diffusion bonding temperature of the metal or alloy is generally set as:
T＝(0.6～0.8)T m
wherein T is a preset temperature, T m In this example, a magnesium alloy is used as a base material for melting point of the base material.
S33, respectively pressing the left punch 9 and the right punch 16 into the first cavity 22 and the second cavity 23, and changing the control current frequency of the press 4 to pulse and pressurize the upper pressing plate 11, the lower pressing plate 15, the upper die 14, the lower die 12, the left punch 9, the right punch 15 and the contact area with the surface of the dissimilar alloy composite plate in the forming device, wherein the pulse and pressurization can enable the diffusion connection effect of the dissimilar alloy composite plate to be better, and the pressure is loaded to 8-20 MPa at a preset speed and the like.
S34, carrying out heat preservation and pressure maintaining treatment on the dissimilar alloy composite plates in the resistance furnace 5, wherein the heat preservation time after diffusion connection compounding is 50-100 min, closing the resistance furnace 5 after heat preservation is completed, and cooling to room temperature, and at the moment, the diffusion connection of the adjacent alloy plates in the dissimilar alloy composite plates is completed.
Further, the method for forming the heterogeneous alloy composite plate by using the solid particles in the step S4 comprises the following steps of,
and S41, as shown in fig. 5a, the right punch 16 of the right hydraulic cylinder 17 positioned on the right side of the press 4 is withdrawn from the second cavity 23 of the dissimilar alloy composite plate, and solid particles are added into the second cavity 23, so that the whole second cavity 23 is filled with the solid particles.
S42, as shown in fig. 5b, pressing the right punch 16 of the right hydraulic cylinder 17 located on the right side of the press 4 into the second cavity 23 of the dissimilar alloy composite plate, and obtaining the expression of the press-in amount of the punch according to the principle of volume invariance and considering the expansion rate of the solid particles:
where h is the pressing amount of the press head, a is the width of the third alloy sheet 20, b is the thickness of the third alloy sheet 20, z is the effective calculated length of the deformation zone, y is the distance of the initial press head, and α is the compression coefficient of the solid particles.
S43, heating the heterogeneous alloy composite plate filled with the solid particles to 400-470 ℃ and keeping the temperature unchanged.
And S44, keeping the pressure of the upper pressing plate 11 and the lower pressing plate 15 in the forming device unchanged, respectively controlling the upper die 14 positioned at the upper end of the press 4 and connected with the upper hydraulic cylinder 3 to move upwards by using the pressure control system 1, and downwards moving the lower die 12 positioned at the lower end of the press 4 and connected with the ejection cylinder 13, so as to reserve a forming space for forming solid particles of the heterogeneous alloy composite plate.
S45, respectively controlling a left punch 10 fixed on a left hydraulic cylinder 9 and a right punch 16 fixed on a right hydraulic cylinder 17 by using a pressure control system 1 to carry out gradient pressurization on solid particles until the pressure of the dissimilar alloy composite plate is 20-30 MPa, until the upper surface and the lower surface of the dissimilar alloy composite plate are respectively adhered to an upper die 14 and a lower die 12, at the moment, the upper die 14 moves downwards by 2-5mm, the lower die 12 moves upwards by 2-5mm, and expands to form a multilayer honeycomb structure, at the moment, keeping the temperature and the pressure for 3-5min, and then, completely forming the dissimilar metal alloy multilayer honeycomb plate.
In a preferred embodiment of the invention, the short-flow solid particle forming device of the heterogeneous alloy multilayer honeycomb composite board comprises an upper hydraulic cylinder 3, a press 4 provided with a displacement sensor 2, a resistance furnace 5, a left hydraulic cylinder 9, a left punch 10, a lower pressing plate 11, a lower die 12, an ejection cylinder 13, an upper die 14, an upper pressing plate 15, a right punch 16 and a right hydraulic cylinder 17, wherein after the punches are moved to be pressed into a composite board cavity, complete sealing can be realized, the upper hydraulic cylinder 3, the left hydraulic cylinder 9, the right hydraulic cylinder 17 and the ejection cylinder 13 are connected with a computer to jointly form a pressure control system 1, the forming pressure of the composite board is controlled, and the ejection cylinder 13 can eject a finished product to realize demoulding; the upper pressing plate 11, the lower pressing plate 15, the upper die 14, the lower die 12 and the thermocouple 7 are all positioned in the resistance furnace 5, and the upper pressing plate 11 and the lower pressing plate 15 are used for fixing the composite plate.
The resistance furnace 5 is located the middle part of press 4, and the installation end of last pneumatic cylinder 3 is connected with the upper end of press 4, and the motion end of going up pneumatic cylinder 3 is connected with last mould 14 and top board 15 respectively, and the installation end of ejecting cylinder 13 is connected with the lower extreme of press 4, and the motion end of ejecting cylinder 13 is connected with bed die 12 and bed board 11 respectively, drives the mould through the plunger motion and removes, and the installation end of left pneumatic cylinder 9 and the installation end of right pneumatic cylinder 17 are connected with the left end and the right-hand member of press 4 respectively, and the motion end of left pneumatic cylinder 9 is equipped with left drift 10, and the motion end of right pneumatic cylinder 17 is equipped with right drift 16.
The device for forming the heterogeneous alloy multilayer honeycomb composite board short-flow solid particles further comprises a pressure control system 1, a displacement sensor 2, a PID control system 8, a temperature control system 6 and a thermocouple 7, wherein the control end of the pressure control system 1 is respectively connected with the control ends of the displacement sensor 2, the upper hydraulic cylinder 3, the left hydraulic cylinder 9, the ejection cylinder 13 and the right hydraulic cylinder 17, and the PID control system 8 is respectively connected with the control ends of the resistance furnace 5, the temperature control system 6 and the thermocouple 7. The diffusion connection and the solid particle bulging are carried out in the forming device, and the high-efficiency forming of the honeycomb heterogeneous alloy composite plate can be realized by a single process, so that the cost is effectively reduced, and the production efficiency is improved.
The main working process of the heterogeneous alloy multilayer honeycomb composite board short-flow solid particle forming device is as follows: firstly, the dissimilar alloy composite plate is placed in a resistance furnace 5 and vacuumized, and a press machine 4 applies pressure to the dissimilar alloy composite plate through an upper pressing plate 15, a lower pressing plate 11, a lower die 12 and an upper die 14 respectively. Then, the resistance furnace 5 is gradually heated to a temperature higher than the dissimilar alloy diffusion connection compounding temperature by the temperature control system 6 and the thermocouple 7, the left punch 10 and the right punch 16 are respectively pressed into the first cavity 22 and the second cavity 23, the control current frequency of the press 4 is changed, and the upper pressing plate 11, the lower pressing plate 15, the upper die 14, the lower die 12, the left punch 9, the right punch 15 and the contact area with the surface of the dissimilar alloy composite plate in the forming device are subjected to pulse pressurization, so that the dissimilar alloy composite plate is further subjected to diffusion connection compounding. Then the upper pressing plate 15 and the lower pressing plate 11 are controlled to keep the pressure unchanged, the pressure control system 1 applies pressure to solid particles through a left punch 10 and a right punch 16 fixed on a left hydraulic cylinder 9 and a right hydraulic cylinder 17 respectively, so that the composite plate cavity of the dissimilar alloy is gradually formed into a regular hexagon, at the moment, the upper hydraulic cylinder 3 drives the upper die 14 to move upwards, and the ejection cylinder 13 drives the lower die 12 to move downwards. Finally, after the forming and film pasting process of the dissimilar alloy composite plate is finished, the upper die 14 is moved downwards by 2-5mm, and the lower die 12 is moved upwards by 2-5mm, so that heat preservation and pressure maintaining are carried out; the temperature control system 6 controls the resistance furnace 5 to be cooled in a gradient way, and the pressure control system 1 reduces the pressure and unloads the pressure through the left hydraulic cylinder 9, the right hydraulic cylinder 17, the upper hydraulic cylinder 3 and the ejection cylinder 13.
The method and the device for forming the heterogeneous alloy multilayer honeycomb composite board short-flow particle medium are further described by combining the following embodiments:
example 1:
s1, preparing an alloy plate and carrying out surface pretreatment.
The first alloy plate 18, the second alloy plate 19 and the third alloy plate 20 are manufactured by using a linear cutting mode or a laser cutting mode and the like, wherein the first alloy plate 18 is a magnesium alloy plate, and the second alloy plate 19 and the third alloy plate 20 are aluminum alloy plates with different sizes respectively; and carrying out surface pretreatment on the alloy plate before diffusion connection: specifically comprises the steps of etching ravines, removing oxide layers and drying.
Furthermore, the gully is formed by laser ablation, the depth of the gully is 80 microns, the power of the laser is 70w, the maximum pulse energy is 1.0mJ, the frequency is 70kHz, and the wavelength is 1065nm; the surface treatment includes: the first alloy plate 18, the second alloy plate 19 and the third alloy plate 20 are respectively polished by using 800# abrasive paper to remove the oxide layer on the surface, then are soaked in warm water for about 2-5 minutes, are ultrasonically cleaned to remove alloy powder remained on the surface, are washed by alcohol, and are dried by cold air for later use.
S2, paving and arranging the alloy plates.
S21, performing complete overlapping layering according to the first alloy plate 18/the second alloy plate 19/the first alloy plate 18, and manufacturing a plurality of laminated plates 21 with the same structure.
S22, paving the laminated plates 21, the third alloy plates 20 and the laminated plates 21, wherein the third alloy plates 20 are paved between the two laminated plates 21 at equal intervals, and accurate positioning of the first alloy plates 18, the second alloy plates 19, the first alloy plates 18 and the laminated plates 21, the third alloy plates 20 and the laminated plates 21 is ensured in the paving process.
And S3, connecting the prepared magnesium-aluminum alloy composite plates by using diffusion connection metallurgical bonding.
And S31, polishing and drying the diffusion connection surface of the prefabricated magnesium-aluminum alloy composite plate obtained in the step S22, ensuring that the contact surface has almost no gap, and spraying a spacer in the area where the third alloy plate is not arranged in the prefabricated magnesium-aluminum alloy composite plate, wherein the spacer is sprayed after each layer of the third alloy plate 20 is paved.
S32, placing the magnesium aluminum alloy composite plate processed in the S31 into a resistance furnace 5, vacuumizing the resistance furnace 5 to 0.09MPa, and heating the resistance furnace 5 to the preset temperature of 400-470 ℃ in a gradient manner at a preset speed of 15 ℃/min by utilizing a temperature control system 6 and a thermocouple 7.
S33, respectively pressing the left punch 9 and the right punch 16 into the first cavity 22 and the second cavity 23, and by changing the control current frequency of the press 4, pulse pressurizing is carried out on the upper pressing plate 11, the lower pressing plate 15, the upper die 14, the lower die 12, the left punch 9, the right punch 15 and the contact area with the surface of the magnesium aluminum alloy composite plate in the forming device, so that the diffusion connection effect of the magnesium aluminum alloy composite plate is better due to the pulse pressurizing, and the pressure is loaded to 8-20 MPa in a preset speed equal gradient mode.
S34, carrying out heat preservation and pressure maintaining treatment on the magnesium aluminum alloy composite plate in the resistance furnace 5, wherein the heat preservation time after diffusion connection compounding is 50-100 min, closing the resistance furnace 5 after heat preservation is completed, and cooling to room temperature, and at the moment, the diffusion connection of the adjacent alloy plates in the magnesium aluminum alloy composite plate is completed.
S4, forming the magnesium aluminum alloy composite plate by utilizing the solid particles.
S41, the right punch 16 of the right hydraulic cylinder 17 positioned on the right side of the press 4 is withdrawn from the second cavity 23 of the magnesium aluminum alloy composite plate, tightness of the second cavity is guaranteed, a semi-closed space is formed, and solid particles are added into the second cavity 23, so that the whole second cavity 23 is filled with the solid particles.
And S42, pressing a right punch 16 of a right hydraulic cylinder 17 positioned on the right side of the press 4 into the second cavity 23 of the magnesium aluminum alloy composite plate, so as to ensure the tightness of the second cavity and form a closed space.
S43, heating the magnesium aluminum alloy composite plate filled with the solid particles to 400-470 ℃, and keeping the temperature unchanged.
And S44, keeping the pressure of the upper pressing plate 11 and the lower pressing plate 15 in the forming device unchanged, respectively controlling an upper die 14 positioned at the upper end of the press 4 and connected with the upper hydraulic cylinder 3 to move upwards by using the pressure control system 1, and downwards moving a lower die 12 positioned at the lower end of the press 4 and connected with the ejection cylinder 13, so as to reserve a forming space for forming solid particles of the magnesium aluminum alloy composite plate.
S45, respectively controlling a left punch 10 fixed on a left hydraulic cylinder 9 and a right punch 16 fixed on a right hydraulic cylinder 17 to carry out gradient pressurization on solid particles by using a pressure control system 1, so that the pressure of the magnesium aluminum alloy composite plate is 20-25 MPa, until the upper surface and the lower surface of the magnesium aluminum alloy composite plate are respectively adhered to an upper die 14 and a lower die 12, at the moment, the upper die 14 moves downwards by 2-5mm, the lower die 12 moves upwards by 2-5mm, and expands to form a multi-layer honeycomb structure, at the moment, continuing to keep the temperature and the pressure for 30-35min, and then, completely forming the magnesium aluminum metal alloy multi-layer honeycomb plate.
S5, carrying out gradient cooling on the resistance furnace 5 through the temperature control system 6, respectively unloading the left hydraulic cylinder 9, the right hydraulic cylinder 17, the upper hydraulic cylinder 3 and the ejection cylinder 13 in the forming device through the pressure control system 1, and demoulding to obtain the honeycomb magnesium aluminum alloy composite plate, as shown in FIG. 6.
Example 2:
s1, preparing an alloy plate and carrying out surface pretreatment.
The first alloy plate 18, the second alloy plate 19 and the third alloy plate 20 are manufactured by using modes such as wire cutting or laser cutting, the first alloy plate 18 is a magnesium alloy plate, and the second alloy plate 19 and the third alloy plate 20 are aluminum-lithium alloy plates with different sizes respectively; and carrying out surface pretreatment on the alloy plate before diffusion connection: specifically comprises the steps of etching ravines, removing oxide layers and drying.
Furthermore, the gully is formed by laser ablation, the depth of the gully is 80 microns, the power of the laser is 70w, the maximum pulse energy is 1.0mJ, the frequency is 70kHz, and the wavelength is 1065nm; the surface treatment includes: the first alloy plate 18, the second alloy plate 19 and the third alloy plate 20 are respectively polished by using 800# abrasive paper to remove the oxide layer on the surface, then are soaked in warm water for about 2-5 minutes, are ultrasonically cleaned to remove alloy powder remained on the surface, are washed by alcohol, and are dried by cold air for later use.
S2, paving and arranging the alloy plates.
S21, performing complete overlapping layering according to the first alloy plate 18/the second alloy plate 19/the first alloy plate 18, and manufacturing a plurality of laminated plates 21 with the same structure.
S22, paving the laminated plates 21, the third alloy plates 20 and the laminated plates 21, wherein the third alloy plates 20 are paved between the two laminated plates 21 at equal intervals, and accurate positioning of the first alloy plates 18, the second alloy plates 19, the first alloy plates 18 and the laminated plates 21, the third alloy plates 20 and the laminated plates 21 is ensured in the paving process.
And S3, connecting the prepared magnesium-aluminum-lithium composite board by using diffusion connection metallurgical bonding.
And S31, polishing and drying the diffusion connection surface of the prefabricated magnesium-aluminum-lithium composite board obtained in the step S22 to ensure that the contact surface almost has no gap, and spraying a spacer agent on the area of the prefabricated magnesium-aluminum-lithium composite board where the third alloy board is not arranged, wherein the spacer agent is sprayed after each layer of third alloy board 20 is laid.
S32, placing the Mg-Al-Li composite board processed in the S31 into a resistance furnace 5, vacuumizing the resistance furnace 5 to 0.09MPa, and heating the resistance furnace 5 to the preset temperature 390-450 ℃ of diffusion connection in an equal gradient manner by utilizing a temperature control system 6 and a thermocouple 7 at a preset speed of 15 ℃/min.
S33, respectively pressing the left punch 9 and the right punch 16 into the first cavity 22 and the second cavity 23, and changing the control current frequency of the press 4 to pulse and pressurize the upper pressing plate 11, the lower pressing plate 15, the upper die 14, the lower die 12, the left punch 9, the right punch 15 and the contact area with the surface of the magnesium aluminum lithium composite plate in the forming device, wherein the pulse and pressurization can enable the diffusion connection effect of the magnesium aluminum lithium composite plate to be better, and the pressure is loaded to 8-20 MPa in a preset speed equal gradient.
S34, carrying out heat preservation and pressure maintaining treatment on the magnesium aluminum lithium composite board in the resistance furnace 5, wherein the heat preservation time after diffusion connection compounding is 40-90 min, closing the resistance furnace 5 after heat preservation is completed, and cooling to room temperature, and at the moment, the diffusion connection of the adjacent alloy boards in the magnesium aluminum lithium composite board is completed.
S4, forming the magnesium-aluminum-lithium composite board by utilizing the solid particles.
S41, the right punch 16 of the right hydraulic cylinder 17 positioned on the right side of the press 4 is withdrawn from the second cavity 23 of the magnesium-aluminum-lithium composite plate, tightness of the second cavity is guaranteed, a semi-closed space is formed, and solid particles are added into the second cavity 23, so that the whole second cavity 23 is filled with the solid particles.
And S42, pressing a right punch 16 of a right hydraulic cylinder 17 positioned on the right side of the press 4 into the second cavity 23 of the magnesium-aluminum-lithium composite plate, so as to ensure the tightness of the second cavity and form a closed space.
S43, heating the magnesium aluminum lithium composite board filled with the solid particles to 400-470 ℃ and keeping the temperature unchanged.
And S44, keeping the pressure of the upper pressing plate 11 and the lower pressing plate 15 in the forming device unchanged, respectively controlling the upper die 14 positioned at the upper end of the press 4 and connected with the upper hydraulic cylinder 3 to move upwards by using the pressure control system 1, and downwards moving the lower die 12 positioned at the lower end of the press 4 and connected with the ejection cylinder 13, so as to reserve a forming space for forming the solid particles of the magnesium-aluminum-lithium composite plate.
S45, respectively controlling a left punch 10 fixed on a left hydraulic cylinder 9 and a right punch 16 fixed on a right hydraulic cylinder 17 by using a pressure control system 1 to carry out gradient pressurization on solid particles until the pressure of the magnesium aluminum lithium composite plate is 20-25 MPa, until the upper surface and the lower surface of the magnesium aluminum lithium composite plate are respectively adhered to an upper die 14 and a lower die 12, at the moment, the upper die 14 moves downwards by 2-5mm, the lower die 12 moves upwards by 2-5mm, and expands to form a multi-layer honeycomb structure, at the moment, keeping the temperature and the pressure for 30-35min, and then, completely forming the multi-layer honeycomb plate of the magnesium aluminum lithium composite plate.
S5, carrying out gradient cooling on the resistance furnace 5 through the temperature control system 6, respectively carrying out depressurization and unloading on the left hydraulic cylinder 9, the right hydraulic cylinder 17, the upper hydraulic cylinder 3 and the ejection cylinder 13 in the forming device through the pressure control system 1, and carrying out demoulding to obtain the honeycomb magnesium aluminum lithium composite board.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A method for forming a heterogeneous alloy multilayer honeycomb composite board short-flow particle medium is characterized by comprising the following specific implementation steps:
s1, preparing an alloy plate and carrying out surface pretreatment, wherein the alloy plate comprises a first alloy plate, a second alloy plate and a third alloy plate;
s2, paving and arranging the alloy plates:
s21, placing a second alloy plate between two identical first alloy plates to manufacture a plurality of laminated plates with identical structures;
s22, placing a plurality of third alloy plates between two identical laminated plates in an equidistant mode to obtain a prefabricated heterogeneous alloy composite plate;
s3, connecting the prepared heterogeneous alloy composite plates by using diffusion connection metallurgical bonding:
s31, polishing and drying the diffusion connection surface of the prefabricated dissimilar alloy composite plate obtained in the step S22, and spraying a spacer agent on the area of the prefabricated dissimilar alloy composite plate where the third alloy plate is not arranged;
s32, placing the dissimilar alloy composite plate processed in the S31 into a resistance furnace, vacuumizing the resistance furnace to 0.09MPa, heating the resistance furnace to a preset temperature in diffusion connection in a gradient manner by utilizing a temperature control system and a thermocouple at a preset speed of 15 ℃/min, wherein the diffusion coefficient expression of the dissimilar alloy composite plate at the preset temperature is as follows:
D＝Ee -q/KT
wherein D is a diffusion coefficient at a preset temperature, K is a Boltzmann constant, q is diffusion activation energy, E is a proportionality coefficient, T is a preset temperature, and E is a natural logarithm base;
s33, respectively pressing the left punch and the right punch into the first cavity and the second cavity, and performing pulse pressurization on an upper pressing plate, a lower pressing plate, an upper die, a lower die, the left punch, the right punch and a contact area with the surface of the dissimilar alloy composite plate in the forming device by changing the control current frequency of the press, wherein the diffusion connection effect of the dissimilar alloy composite plate is better due to the pulse pressurization, and the pressure is loaded to 8-20 MPa in an equal gradient manner at a preset speed;
s34, performing heat preservation and pressure maintaining treatment on the dissimilar alloy composite plates in the resistance furnace, closing the resistance furnace after heat preservation is completed, and cooling to room temperature, wherein at the moment, diffusion connection of adjacent alloy plates in the dissimilar alloy composite plates is completed;
s4, forming the heterogeneous alloy composite plate by utilizing solid particles:
s41, a right punch of a right hydraulic cylinder positioned on the right side of the press is withdrawn from a first cavity of the dissimilar alloy composite plate, and solid particles are added into a second cavity, so that the whole second cavity is filled with the solid particles;
s42, pressing a right punch of a right hydraulic cylinder positioned on the right side of the press into a second cavity of the dissimilar alloy composite plate, wherein the expression of the pressing amount of the punch pressed into the dissimilar alloy composite plate is as follows:
wherein h is the pressing amount of the pressing head, a is the width of the third alloy plate, b is the thickness of the third alloy plate, z is the effective calculated length of the deformation zone, y is the distance of the initial pressing head, and alpha is the solid particle compression coefficient;
s43, heating the heterogeneous alloy composite plate filled with the solid particles to 400-470 ℃ and keeping the temperature unchanged;
s44, keeping the pressure of an upper pressing plate and a lower pressing plate in the forming device unchanged, respectively controlling an upper die at the upper end of a press machine to move upwards and connected with an upper hydraulic cylinder by utilizing a pressure control system, and downwards moving a lower die at the lower end of the press machine and connected with an ejection cylinder to reserve a forming space for forming solid particles of the heterogeneous alloy composite plate;
s45, respectively controlling a left punch fixed on a left hydraulic cylinder and a right punch fixed on a right hydraulic cylinder to carry out gradient pressurization on solid particles by utilizing a pressure control system, so that the pressure of the dissimilar alloy composite plate is 20-30 MPa until the upper surface and the lower surface of the dissimilar alloy composite plate are respectively adhered to an upper die and a lower die, at the moment, the upper die moves downwards by 2-5mm, the lower die moves upwards by 2-5mm, and the multilayer honeycomb structure is formed by bulging, at the moment, keeping heat and pressure until the dissimilar metal alloy multilayer honeycomb plate is completely formed;
s5, carrying out gradient cooling on the resistance furnace through a temperature control system, respectively unloading the left hydraulic cylinder, the right hydraulic cylinder, the upper hydraulic cylinder and the ejection cylinder in the forming device through a pressure control system, and demoulding to obtain the honeycomb heterogeneous alloy composite plate.
2. The method for forming the heterogeneous alloy multilayer honeycomb composite board short-flow granular medium according to claim 1, wherein the first alloy plate and the third alloy plate are heterogeneous alloys, the second alloy plate and the third alloy plate are the same alloy, the first alloy plate and the second alloy plate have the same appearance structure, and the second alloy plate has a width which is 3n times that of the third alloy plate; the distance between two adjacent third alloy plates is 3 times of the distance between two ravines, and the ravines are positioned between the two adjacent third alloy plates.
3. The method for forming a heterogeneous alloy multi-layer honeycomb composite panel short-flow particulate medium according to claim 1, wherein in step S1, the surface pretreatment includes etching of grooves, deoxidization of the layers and drying; the etched gully plays a role in guiding, and the dissimilar alloy composite plate is deformed along the gully processed in advance under the action of axial force to gradually expand to form a honeycomb shape.
4. The method for forming a heterogeneous alloy multi-layer honeycomb composite panel short-flow particulate medium according to claim 1, wherein in step S32, the preset temperature is 400-470 ℃.
5. The method for forming the heterogeneous alloy multilayer honeycomb composite board short-flow granular medium according to claim 3, wherein the etched gullies are positioned on one side where the first alloy board and the third alloy board are in contact, the depth of the gullies is 80 micrometers, and the arc surface of the gullies corresponds to a central angle of 120 degrees.
6. The method for forming the heterogeneous alloy multilayer honeycomb composite board short-flow granular medium according to claim 1, wherein in the step S4, the solid particles are silicon nitride ceramic balls and molybdenum disulfide, and the diameter is between 0.3 and 0.8 mm.
7. A forming device for a method for forming a heterogeneous alloy multi-layer honeycomb composite board short-flow granular medium according to any one of claims 1 to 6, which comprises an upper hydraulic cylinder, a press, a resistance furnace, a left hydraulic cylinder, a left punch, a lower pressing plate, a lower die, an ejection cylinder, an upper die, an upper pressing plate, a right punch and a right hydraulic cylinder; the resistance furnace is located the middle part of press, go up the pneumatic cylinder the installation end with the upper end of press is connected, go up the pneumatic cylinder the motion end respectively with go up the mould with the top board is connected, the installation end of ejecting cylinder with the lower extreme of press is connected, the motion end of ejecting cylinder respectively with the bed die with the lower board is connected, the installation end of left pneumatic cylinder with the installation end of right pneumatic cylinder respectively with the left end and the right-hand member of press are connected, the motion end of left pneumatic cylinder is equipped with left drift, the motion end of right pneumatic cylinder is equipped with right drift.
8. The forming apparatus of claim 7, further comprising a pressure control system, a displacement sensor, a PID control system, a temperature control system, and a thermocouple, wherein control ends of the pressure control system are connected to control ends of the displacement sensor, the upper hydraulic cylinder, the left hydraulic cylinder, the ejector cylinder, and the right hydraulic cylinder, respectively, and wherein the PID control system is connected to control ends of the resistance furnace, the temperature control system, and the thermocouple, respectively.
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